• 作者： Huang, Fang-Chang; Ju, Yi-Hsu; Hsu, Jing-Yun
• 中文摘要： 本研究藉著脂解酵素,在正己烷中,進行鯡魚油與多不飽和脂肪酸的酸解反應及甘油與多不飽和脂肪酸的酯化反應,以提高甘油酯中多不飽和脂肪酸的含量。在酸解反應時,如將鯡魚油先予以水解二小時後,再加入多不飽和脂肪酸,則鯡魚油中的多不飽和脂肪酸含量比將兩基質同時加入的來的高。在甘油與多不飽和脂肪酸的酯化反應,添加1%水量及0.2克的分子篩,經24小時反應,甘油酯產率可達87%。
• 英文摘要： This work examines Lipozyme IM-20 catalyzed acidolysis and esterification in n-hexane for enriching n-3 polyunsaturated fatty acid (n-3 PUFA) in acylglycerols of menhaden oil. Optimal conditions for these reactions are also established. Under a circumstance in which menhaden oil is hydrolyzed for 2 h before addition of n-3 PUFA-rich fatty acids in the interesterification reaction; the triacylglycerol content in acylglycerols is significantly higher than when menhaden oil and n-3 PUFA-rich fatty acids are added simultaneously. The esterification of glycerol and n-3 PUFA-rich fatty acid with an initial water content of 1% (w/v) and addition of 0.2g of molecular sieve, leads to an acylglycerols yield of 87 wt% after 24 h of reaction.
• 中文關鍵字： 不飽和脂肪酸; 鯡魚油; 酸解; 酯化; 脂肪催化反應
• 英文關鍵字： Polyunsaturated Acid; Menhaden Oil; Acidolysis; Esterification; Lipase Catalytic Reaction